Car-body bolster.



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CAB BODY4 BOLSTER.

(Application f led June 23, 1902 (No Model.)

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UNrTsD STATES PATENT OFFICE.

RAYMOND H.=HORNBROOK, OF CANTON, OHIO.

CAR-BODY BOLSTER.

SPECIFICATION forming part of Letters Patent No. 712,800, dated November4, 1902. Application iiled .Tune 23, 1902. Serial No. 112,818. (Nomodel.)

for car-bodies, and has for its objects a sim` ple and efficientconstruction, with Z-bars for compression members, a plate for thetension member, the center sills of the car for separating the bars andthe plate, and with the side sills of the car attached on the ends ofthe bolster, and an arrangement and connection of the several.memberswhich makesv them absolutely rigid. I attain theseobjects by theconstruction and arrangement illustrated in the accompanying drawings,in which- Figure l is aplan view of the bolster; Fig.

2, a side elevation Vshowingjone end in section; Fig. 3, an invertedplan view; Fig. 4,

van end view with the car side sill removed;

Fig. 5, a middle cross-section; and Fig. 6, aY

cross-section on line 6 6, Figs. l, 2, and 3.

Similar numerals refer to similar'parts throughout the drawings.

The bolster is composed of the Z-bar compression members 1, the platetension member 2, which laps over the ends of the Z-bars, f

the car center sills 3, which separate the bars and the plate near themiddle, together with the angle-plates 4 on either side at the ends, towhich the car side sills 5 are attached, the

cast bearing-blocks 6 for sustaining the side.

weight of the car, and the cast foot-plates 7 for tying the Z-barstogether and for bearing on the truck-bolsters. The similar compressionZ-bars l are located'with their Webs vertical, their upper vflangesdirected inward toward each other, and their lower lianges directedoutward, respectively. The middle parts of the bars are preferablyhorizontal either way from the middle line to the outer sides of therespective center sills 3, whence they are bent to incline upward andoutward t-o join the tension-plate 2 a little distance from therespective ends of the bolster,whence they are again bent to make therespective end parts horizontal. The foot-plates 7 are respectivelyriveted to the lower flanges of The carvcenter sills 3 are preferablymadeV of channel-bars, with their webs vertical and their lower flangesriveted to the upper flanges of the Z-bars, respectively.

The tension-plate 2 is made wide enough in the middle part to cover thefaces of the up- `per ilauges of the Z-bars as they are located in thebolster and is preferably horizontal either way from the middle line tothe outer sides of the respective center sills 3, to the upper flangesof which it is riveted. Thence it is slightly bent and inclined downwardand outward, resting on the bearing-blocks 6, respectively, to thejunction with the upper flanges of the Z-bars near the respective endsof the bolsters, whence it is continued outward horizontally along thesetianges to the respective ends of the Z-bars. Thence the tensionfplateisbent down over the Vends of the Z-bars and then inward along the lowerflanges, respectively. AThe end parts 8 of the tension-plate which jointhe lower lianges of the'Z-bars are made enough wider. than the `middlepart to cover the faces of these flanges,

and the plate is riveted on either side above to the upper flanges andbelow to the lower flanges, respectively, of the Z-bars. Thisconstruction ties the plate and the bars rigidly together.

The angle-plates l are riveted on the outer sides of the respective Websof the Z-bars at either end of the bolster, with their respectiveflanges iiush with the ends of the bolsters IOO compression members, aplate tension member, and separating members near the middle between thebars and plate, said plate being increased in Width at the ends and isbent around the respective ends of the Z-bars and is riveted to therespective adjoining flanges thereof.

3. A car-body bolster composed of Z-bar compression members, a platetension member riveted at the respective ends to the adjoining angesofthe Z-bars, separating members near the middle between the bars andplate, and foot-plates riveted respectively to the free flanges of theZ-bars between the middle and the ends thereof.

4. A car-body bolster composed of Z-bar compression members, a plaietension member riveted at the respective ends to the adjoining flangesofthe Z-bars, separating meinbers near the middle between the bars andplate, foot-plates riveted respectively to the outer flanges of theZ-bars between the middle and the ends thereof, and bearing-blocksriveted respectively to the inner anges of the Z-bars opposite thefoot-plates and against the tension-plate.

5. A car-body bolster composed of Z-bar compression members, a platetension member riveted at the respective ends to the adjoining liangesof the Z-bars, separating members near the middle between the bars andplate, angle-plates riveted 'on either side at the ends of therespective Z-bars, and car side sills riveted to the respective anges ofsaid angle-plates.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

RAYMOND H. HORNBROOK.

Witnesses:

JOSEPH FREASE, HARRY FREAsE.

